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Processor & ChipsetLenovo ThinkPad E550 20DF007MUS 
Processor ManufacturerIntel
Processor TypeCore i3
Processor Generation5th Gen
Processor Modeli3-5005U
Processor Speed2 GHz
Processor CoreDual-core (2 Core)
Cache3 MB
Direct Media Interface5 GT/s
64-bit ProcessingYes
Hyper-ThreadingYes
vPro TechnologyNo
Chipset ManufacturerIntel
MemoryLenovo ThinkPad E550 20DF007MUS
Standard Memory8 GB
Maximum Memory16 GB
Memory TechnologyDDR3L SDRAM
Memory StandardDDR3L-1600/PC3-12800
Number of Total Memory Slots2
Memory Card ReaderYes
Memory Card SupportedSD, SDXC, SDHC, MultiMediaCard (MMC)
StorageLenovo ThinkPad E550 20DF007MUS
Hard Drive Capacity500 GB
Hard Drive InterfaceSerial ATA/600
Hard Drive RPM7200
Hard Drive Configuration1 x 500 GB
Optical Drive TypeDVD-Writer
Optical Media SupportedDVD±R/±RW
Display & GraphicsLenovo ThinkPad E550 20DF007MUS
Screen Size15.6"
Display Screen TypeLCD
Aspect Ratio16:9
Screen ModeFull HD
Screen Resolution1920 x 1080
Backlight TechnologyLED
TouchscreenNo
HDCP SupportedYes
Graphics Controller ManufacturerIntel
Graphics Controller ModelHD Graphics 5500
Graphics Memory TechnologyDDR3L SDRAM
Graphics Memory AccessibilityShared
3D TypeNo
Network & CommunicationLenovo ThinkPad E550 20DF007MUS
Wireless LANYes
Wireless LAN ManufacturerIntel
Wireless LAN ModelDual Band Wireless-AC 3160
Wireless LAN StandardIEEE 802.11ac
WimaxNo
Ethernet TechnologyGigabit Ethernet
BluetoothYes
Bluetooth StandardBluetooth 4.0
WWAN SupportedNo
Built-in DevicesLenovo ThinkPad E550 20DF007MUS
Front Camera/WebcamYes
MicrophoneYes
SpeakersYes
Interfaces/PortsLenovo ThinkPad E550 20DF007MUS
HDMIYes
DVINo
Total Number of USB Ports3
Number of USB 2.0 Ports1
Number of USB 3.0 Ports2
VGAYes
Network (RJ-45)Yes
Audio Line InNo
Headphone/Microphone Combo PortYes
SoftwareLenovo ThinkPad E550 20DF007MUS
Operating System PlatformWindows
Operating SystemWindows 8.1 Pro
Operating System Architecture64-bit
Input DevicesLenovo ThinkPad E550 20DF007MUS
KeyboardYes
Pointing Device TypeTrackpoint, TouchPad
TouchPad FeaturesMulti-touch Gesture
Battery InformationLenovo ThinkPad E550 20DF007MUS
Number of Cells6-cell
Battery ChemistryLithium Ion (Li-Ion)
Battery Energy48 Wh
Maximum Battery Run Time9 Hour
Power DescriptionLenovo ThinkPad E550 20DF007MUS
Maximum Power Supply Wattage45 W
Physical CharacteristicsLenovo ThinkPad E550 20DF007MUS
ColorGraphite Black
Height1.1" (26.9 mm)
Width14.8" (376.9 mm)
Depth10.1" (256 mm)
Weight (Approximate)2.35 kg
MiscellaneousLenovo ThinkPad E550 20DF007MUS
Package ContentsThinkPad E550 20DF007MUS, Lithium Ion Battery, AC Adapter
Security FeaturesPower-on Password, Hard Disk Password, Supervisor Password, Security Keyhole
Energy StarYes
Environmentally FriendlyYes
Environmental CertificationEPEAT Gold, RoHS, ENERGY STAR